The business version of the service is deployed through LDAP or Active Directory and serves as a very solid desktop backup platform.

SpiderOak offers a free personal plan up to 1TB hosted business plan and is available for almost every platform in the market.

# 1 UbuntuOne

Provides a very good service in terms of keeping all your contents safe and allows you to access it from anywhere and share the same with your family, friends, and colleagues.

The user can not only sync files from his folder but also purchase music from UbuntuOne music store. It offers 5GB free for its account holder.

It provides up to 20GB of storage for $3.99 per month along with the provision of streaming music service to your mobile.  

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